define(function(require){
    var page1 = require('./page1');
    console.log(page1);
    window.addEventListener('hashchange',function(){
        require(['./page2'],function(page2){
            console.log("args:" + arguments.length);
            console.log("page2 加载成功:" + page2);
        },function(err){
            console.log("err:" + err);
        });
    });
    console.log('load page2');
    return {
        version:1
    }
});